Machine fob threshing and cleaning grain in the field



2 Sheel:s--8heet 1.

G. W. SWIFT. THRESHING AND CLEANING GRAIN.

Patented July 15, 1856.

2 Sheets-Sheet 2.

SWIFT. THRBSHING AND CLEANING GRAIN.

No. 15.349. Patnted July 15; '1856.

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GEORGE IV. SWIFT, OF OXFORD, MISSISSIPPI.

MACHINE FOR THRESI-IING AND CLEANING GRAIN IN THE FIELD.

Specification of Letters Patent No. 15,349, dated July 15, 1856.

erence being had to the annexed drawing,

forming part of this specification, in which- Figure 1 is a side elevation of the machine. Fig. 2 is a vertical longitudinal section of same. Fig. 3 is a section on m m, taken through axis of main shaft. Fig. I is a side View of threshing wheel. Fig. 5 is a side view of wheel C showing position of pinions H and I.

Similar letters of reference in the several figures denote the same part of the machine.

The object of my invention is the threshing and cleaning of grain in the field.

It consists in the arrangement on a traveling frame of the usual threshing and separating mechanism, and in the combination of gearing and other devices hereinafter to be described, for giving motion to thethreshing and cleaning apparatus from the traveling wheels of the machine; the details of construction and operation being as follows:

In the drawing, A, is the tongue to which the team is attached; B C, driving wheels supporting frame, the latter turning loosely on shaft E, and the former capable of being secured, either to shaft D or E as occasion may require; D, E, horizontal shafts, connected by pinions F F; G, piece secured on inner side of wheel C in which pinions H and I are held. H, I pinions, between piece G and face of wheel C; J, K, pulleys with belt-J on shaft of pinion H, and K attached to band wheel L; these pulleys are of the same size as the pinions H I after allowing for the meshing of the cogs on the latter; L, band wheel, driving threshing wheel, by belt M; O, threshing wheel on shaft N, studded with pins on its sides; P P, wheels operating straw carrier Q, by means of crossed cord d (Fig. l) Q, straw carrier; R, fan operated by cord 1), (Fig. 1)

"about the same.

S, case containing threshing and cleaning apparatus, supported on maln frame; T,

openlngs through case S, by which the grain is fed to the threshing wheel; there is one of these openings 011 each side. U, box under frame in which the cleaned grain falls; V, caster roller for supporting front of machine; W, system of chains, running one from each corner of the machine to the center piece f; by driving a pin through this center piece, the machine can be turned X, cap fitting over thresher; Y, screen between thresher and fan; Z, screen under threshing wheel, (Fig. 2) a, fan case; 6, sliding piece closing aperture for emptying box U.

The operation of the machine is as follows: The machine is confined to the ground by a pin through piece f, and the team attached at right angles to the pole A on side nearest wheel C; wheel B being secured on shaft E. The horses are then started turning the machine about securing pin or stake, and causing wheelB to move forward and wheel C to rotate rearward. This opposite rotation of the driving wheels B G is ren- 'dered effective in producing a rapid rotais transmitted to pulley J and thence bypulley K (connected by belt with pulley J) to the driving pulley L; giving said pulley L two revolutions to one of the wheel C. But, during this rotation of wheel C, wheel B, and with it axle E, is rotating forward. This therefore produces the rotation of pinion I, at the same time that pinion H is put in motion by meshing with it, owing to the backward rotation of wheel C. Thereis consequently an acceleration of the motion of pinion H, of one revolution; so that the pinion H will have one rotation due to the revolution of wheel B, and two due to the revolution of wheel C, which is 'duly transmitted to pulley L, giving the aforesaid pulley L three revolutions to one of the driving wheel C. This increase of velocity may be still further augmented by regulating the diameters of pinions H and I, and pulleys J and K.

The pulley L communicates motion to threshing shaft N, which is duly communicated by belts d and b to the fan and straw carrier.

The grain is fed by openings T, and after cleaning, falls into the box U; whence it is discharged by outlet covered by slide 6.

If it be desired to operate the machine by its forward motion, wheel B is placed on shaft D, so that a rearward rotation may be communicated to pinion I, as both wheels B C move forward. The action will then be the same as above described. In this case, the machine is driven between the shocks of grain, the sheaves of which are thrown on the platforms as the machine set forth.

GEO. WV. SWIFT. Witnesses:

JOHN S. HOLLINGSI-IEAD, CHAs. J. VVooDwARD. 

